1 // Compatibility symbols for previous versions, C++0x bits -*- C++ -*-
3 // Copyright (C) 2009-2017 Free Software Foundation, Inc.
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // Under Section 7 of GPL version 3, you are granted additional
17 // permissions described in the GCC Runtime Library Exception, version
18 // 3.1, as published by the Free Software Foundation.
20 // You should have received a copy of the GNU General Public License and
21 // a copy of the GCC Runtime Library Exception along with this program;
22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 // <http://www.gnu.org/licenses/>.
25 #define _GLIBCXX_COMPATIBILITY_CXX0X
26 #define _GLIBCXX_USE_CXX11_ABI 0
27 #define error_category error_categoryxx
28 #define system_category system_categoryxx
29 #define generic_category generic_categoryxx
32 #include <system_error>
35 #undef system_category
36 #undef generic_category
39 #if __cplusplus < 201103L
40 # error "compatibility-c++0x.cc must be compiled with -std=gnu++0x"
43 #ifdef _GLIBCXX_SHARED
45 namespace std
_GLIBCXX_VISIBILITY(default)
47 _GLIBCXX_BEGIN_NAMESPACE_VERSION
50 // <mutex> exported std::lock_error
51 #if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1)
52 class lock_error
: public exception
56 _GLIBCXX_CONST
what() const throw();
60 lock_error::what() const throw()
61 { return "std::lock_error"; }
64 // We need these due to the symbols exported since GLIBCXX_3.4.10.
65 // See libstdc++/41662 for details.
67 #ifndef _GLIBCXX_LONG_DOUBLE_COMPAT_IMPL
71 size_t operator()(string
) const;
75 hash
<string
>::operator()(string __s
) const
76 { return _Hash_impl::hash(__s
.data(), __s
.length()); }
79 struct hash
<const string
&>
81 size_t operator()(const string
&) const;
85 hash
<const string
&>::operator()(const string
& __s
) const
86 { return _Hash_impl::hash(__s
.data(), __s
.length()); }
88 #ifdef _GLIBCXX_USE_WCHAR_T
92 size_t operator()(wstring
) const;
96 hash
<wstring
>::operator()(wstring __s
) const
97 { return _Hash_impl::hash(__s
.data(), __s
.length() * sizeof(wchar_t)); }
100 struct hash
<const wstring
&>
102 size_t operator()(const wstring
&) const;
106 hash
<const wstring
&>::operator()(const wstring
& __s
) const
107 { return _Hash_impl::hash(__s
.data(), __s
.length() * sizeof(wchar_t)); }
112 struct hash
<error_code
>
114 size_t operator()(error_code
) const;
118 hash
<error_code
>::operator()(error_code __e
) const
120 const size_t __tmp
= std::_Hash_impl::hash(__e
._M_value
);
121 return std::_Hash_impl::__hash_combine(__e
._M_cat
, __tmp
);
125 // <chrono> changes is_monotonic to is_steady.
130 static constexpr bool is_monotonic
= false;
132 constexpr bool system_clock::is_monotonic
;
133 } // namespace chrono
135 // gcc-5 replaces this with _V2::error_category
139 error_category() noexcept
;
141 virtual ~error_category();
143 error_category(const error_category
&) = delete;
144 error_category
& operator=(const error_category
&) = delete;
147 name() const noexcept
= 0;
150 message(int) const = 0;
152 virtual error_condition
153 default_error_condition(int __i
) const noexcept
;
156 equivalent(int __i
, const error_condition
& __cond
) const noexcept
;
159 equivalent(const error_code
& __code
, int __i
) const noexcept
;
162 operator<(const error_category
& __other
) const noexcept
163 { return less
<const error_category
*>()(this, &__other
); }
166 operator==(const error_category
& __other
) const noexcept
167 { return this == &__other
; }
170 operator!=(const error_category
& __other
) const noexcept
171 { return this != &__other
; }
175 // LWG 2145 changes this constructor to constexpr i.e. inline
176 error_category::error_category() noexcept
= default;
178 error_category::~error_category() noexcept
= default;
184 struct generic_error_category
: public std::error_category
187 name() const noexcept
188 { return "generic"; }
193 // XXX locale issues: how does one get or set loc.
194 // _GLIBCXX_HAVE_STRERROR_L, strerror_l(i, cloc)
195 return string(strerror(i
));
199 struct system_error_category
: public std::error_category
202 name() const noexcept
208 // XXX locale issues: how does one get or set loc.
209 // _GLIBCXX_HAVE_STRERROR_L, strerror_l(i, cloc)
210 return string(strerror(i
));
214 const generic_error_category generic_category_instance
{};
215 const system_error_category system_category_instance
{};
218 const error_category
&
219 system_category() noexcept
{ return system_category_instance
; }
221 const error_category
&
222 generic_category() noexcept
{ return generic_category_instance
; }
226 _GLIBCXX_CONST
const error_categoryxx
& system_category() noexcept
;
227 _GLIBCXX_CONST
const error_categoryxx
& generic_category() noexcept
;
231 error_category::default_error_condition(int __i
) const noexcept
233 if (*this == system_category())
234 return error_condition(__i
, _V2::system_category());
235 return error_condition(__i
, _V2::generic_category());
239 error_category::equivalent(int __i
,
240 const error_condition
& __cond
) const noexcept
241 { return default_error_condition(__i
) == __cond
; }
244 error_category::equivalent(const error_code
& __code
, int __i
) const noexcept
246 if (*this == system_category()
247 && __code
.category() == _V2::system_category())
248 return __code
.value() == __i
;
249 if (*this == generic_category()
250 && __code
.category() == _V2::generic_category())
251 return __code
.value() == __i
;
255 _GLIBCXX_END_NAMESPACE_VERSION